Skipping German, be successful in school (4)

I believe the answer is:

eton

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'school' is the definition.
(famous UK public school)

I don't understand how the remainder of the clue works.

(Other definitions for eton that I've seen before include "Berks college" , "academic institution" , "Famous English public school" , "old school" , "Leading English public school" .)

I've seen this clue in The Independent.

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